package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCDemo5 {
    public static void main(String[] args) {
        try(
                Connection con = DBUtil.getConnection()
        ) {
            Statement statement = con.createStatement();
            String sql = "SELECT t.name,t.salary,t.title,c.name,c.floor "+
                         "FROM teacher  t " +
                         "JOIN class c ON t.id = c.teacher_id " +
                         "WHERE t.name='王克晶' ";
            System.out.println(sql);
            ResultSet rs = statement.executeQuery(sql);
            while (rs.next()){
                /*
                String tName = rs.getString("t.name");
                int tSalary = rs.getInt("t.salary");
                String tTitle = rs.getString("t.title");
                String cName = rs.getString("c.name");
                int cFloor = rs.getInt("c.floor");
                */
                //获取字段值时可以使用字段索引，注意:从1开始为结果集第一个字段。可读性差，不推荐
                String tName = rs.getString(1);
                int tSalary = rs.getInt(2);
                String tTitle = rs.getString(3);
                String cName = rs.getString(4);
                int cFloor = rs.getInt(5);
                System.out.println(tName+" "+tSalary+" "+tTitle+" "+cName+" "+cFloor);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
